for us, it's written by us. >> three more days and we can get to work building our country. >> in two days america's got a choice to make. >> one final push and we'll be there. tomorrow we begin a new tomorrow. >> it's up to you! you've got the power! campaign 2012, bob schieffer, norah o'donnell and john dicker son with analysis. anthony mason reports on exit polls. byron pitts follows congress. from cbs news election headquarters, here again is scott pelley >> pelley: good evening. it's a state-by-state battle tonight for electoral votes. the magic number, you'll hear it all night, is 270. you'll also be hearing a lot tonight about the battleground states. nine states where the election is so close they could swing either barack obama or mitt romney. those are the nine battleground states. the polls have closed in only one of them, virginia, and the race there we do not have enough information yet to make a projection in the state of virginia. bob schieffer is, this is -- you've been covering presidential elections since 1972. >> not 57 of them! (laughs) >> pelley: quite a few, bob.